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Context of '4:00 pm August 29, 2005: NHC Advisory: Katrina Weakening, but Strong Winds, Heavy Rains Remain a Threat'

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The National Hurricane Center (NHC) issues a special advisory that, with sustained winds of 145 mph, Katrina has become a Category 4 hurricane. Katrina also continues to grow, as hurricane winds now extend 70 miles from the center, and NHC warns that Katrina can yet strengthen, and will likely move northwest later today. Other aspects of the NHC Advisory include:
bullet Location: 310 miles south-southeast of the mouth of the Mississippi River
bullet Direction and Speed: West-northwest at 8 mph
bullet Maximum Sustained Winds: 145 mph, with higher gusts
bullet Estimated Central Pressure: 935 mb
bullet Size: Hurricane force winds extend outward from center up to 75 miles; tropical storm force winds extend outward up to 160 miles [National Hurricane Center, 8/28/2005]

Entity Tags: Hurricane Katrina, National Hurricane Center

Timeline Tags: Hurricane Katrina

The National Hurricane Center (NHC) warns that Katrina, still a Category 4 hurricane, continues to intensify and grow larger. The NHC reiterates the hurricane warning for Louisiana to Florida, and expands the area covered by a tropical storm warning. It warns further that, “While the details of the landfall intensity cannot be known at this time… Katrina will be a very dangerous hurricane at landfall…. It must be emphasized that the exact landfall point cannot be specified and that Katrina is a large hurricane that will affect a large area,” warns the NHC. “NHC now expects Katrina’s path to move north later today.” Other aspects of the NHC Advisory include:
bullet Location: 275 miles south-southeast of the mouth of the Mississippi River
bullet Direction and Speed: West-northwest at 10 mph
bullet Maximum Sustained Winds: Near 145 mph, with higher gusts
bullet Estimated Central Pressure: 935 mb
bullet Size: Hurricane force winds extend outward from center up to 85 miles; tropical storm force winds extend outward up to 185 miles
bullet Probability that in the next 69 hours, Katrina’s eye will pass within 75 miles of:
bullet Panama City, FL: 11 percent
bullet Gulfport, MS: 26 percent;
bullet New Orleans, LA: 29 percent [National Hurricane Center, 8/28/2005; National Hurricane Center, 8/28/2005; National Hurricane Center, 8/28/2005]

Entity Tags: National Hurricane Center, Hurricane Katrina

Timeline Tags: Hurricane Katrina

The National Hurricane Center (NHC) warns that Katrina, already a potentially catastrophic hurricane headed for the Northern Gulf Coast, continues to gain strength. Katrina is getting stronger-and bigger. The NHC notes that Katrina is now as strong as Hurricane Camille was in 1969, only larger, and warns that storm surge flooding will be 18-22 feet above normal, with surges to 28 feet in some areas. Although hurricanes rarely sustain these extreme winds for long, the NHC reports no obvious large-scale effects that could cause Katrina to weaken substantially. Katrina’s path likely will move northwest, then north-northwest over the next 24 hours. Other aspects of the NHC Advisory include:
bullet Location: 225 miles south-southeast of the mouth of the Mississippi River
bullet Direction and Speed: West-northwest at 12 mph
bullet Maximum Sustained Winds: 175 mph with higher gusts
bullet Estimated Central Pressure: 907 mb
bullet Size: Hurricane winds now extend 105 miles from the center; tropical storm force winds extend to 205 miles
bullet Probability that in the next 69 hours, Katrina’s eye will pass within 75 miles of:
bullet Panama City, FL: 12 percent
bullet Gulfport, MS: 33 percent
bullet New Orleans, LA: 35 percent [National Hurricane Center, 8/28/2005; National Hurricane Center, 8/28/2005; National Hurricane Center, 8/28/2005]

Entity Tags: Hurricane Katrina, Hurricane Camille, National Hurricane Center

Timeline Tags: Hurricane Katrina

The National Hurricane Center (NHC) advises that Katrina is now a Category 2 hurricane with sustained winds of nearly 105 mph. Katrina remains huge, with hurricane force winds extending 125 miles from the center, and tropical storm force winds extending 230 miles. Katrina’s center is now 40 miles south-southwest of Hattiesburg, Mississippi. Minimum central pressure has increased to 940 MB. [National Hurricane Center, 8/29/2005]

Entity Tags: National Hurricane Center, Hurricane Katrina

Timeline Tags: Hurricane Katrina

The National Hurricane Center (NHC) advises that Katrina is now a still-dangerous Category 1 hurricane, with sustained winds of nearly 95 mph. The hurricane remains huge, with hurricane force winds extending 125 miles from the center, and tropical storm force winds extending 230 miles. Katrina’s center is now 20 miles south-southwest of Hattiesburg, Mississippi. [National Hurricane Center, 8/29/2005]

Entity Tags: Hurricane Katrina, National Hurricane Center

Timeline Tags: Hurricane Katrina

The National Hurricane Center (NHC) announces that Katrina continues to weaken over Mississippi. However, strong winds and heavy rains remain a threat. At 4:00 pm the hurricane warning for Lake Pontchartrain and from the mouth of the Pearl River eastward to the Alabama/Florida border is downgraded to a to a tropical storm warning. All other warnings are discontinued. The NHC notes, however, that tropical storm warning remains in effect for this area, although this warning likely will be discontinued this evening. Katrina’s center is now 30 miles northwest of Laurel, Mississippi. [National Hurricane Center, 8/29/2005]

Entity Tags: Hurricane Katrina, National Hurricane Center

Timeline Tags: Hurricane Katrina

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